| A | B |
| Industrial Revolution | a time when factory machines replaced hand tools and large-scale manufacturing replace farming as the main work |
| factory system | system that brought many workers and machines together under one roof |
| Samuel Slater | built first spinning mill in Rhode Island |
| Lowell mills | early factories in Massachusetts that made cloth |
| interchangeable parts | parts that are exactly alike |
| Robert Fulton | inventor of the steamboat |
| Samuel F. B. Morse | inventor of the telegraph |
| Eli Whitney | inventor of the cotton gin |
| cotton gin | invention that made the cotton-cleaning process easier |
| spirituals | religious folk songs sung by enslaved people |
| Nat Turner | leader of a famous slave rebellion in 1831 |